1Parsed test spec with 2 sessions 2 3starting permutation: s0_begin s0_getxid s1_begin s1_insert s0_alter s0_commit s0_checkpoint s0_get_changes s0_get_changes s1_commit s0_vacuum s0_get_changes 4step s0_begin: BEGIN; 5step s0_getxid: SELECT txid_current() IS NULL; 6?column? 7-------- 8f 9(1 row) 10 11step s1_begin: BEGIN; 12step s1_insert: INSERT INTO harvest VALUES ((1, 2, 3)); 13step s0_alter: ALTER TYPE basket DROP ATTRIBUTE mangos; 14step s0_commit: COMMIT; 15step s0_checkpoint: CHECKPOINT; 16step s0_get_changes: SELECT data FROM pg_logical_slot_get_changes('isolation_slot', NULL, NULL, 'include-xids', '0', 'skip-empty-xacts', '1'); 17data 18---- 19(0 rows) 20 21step s0_get_changes: SELECT data FROM pg_logical_slot_get_changes('isolation_slot', NULL, NULL, 'include-xids', '0', 'skip-empty-xacts', '1'); 22data 23---- 24(0 rows) 25 26step s1_commit: COMMIT; 27step s0_vacuum: VACUUM pg_attribute; 28step s0_get_changes: SELECT data FROM pg_logical_slot_get_changes('isolation_slot', NULL, NULL, 'include-xids', '0', 'skip-empty-xacts', '1'); 29data 30------------------------------------------------------ 31BEGIN 32table public.harvest: INSERT: fruits[basket]:'(1,2,3)' 33COMMIT 34(3 rows) 35 36?column? 37-------- 38stop 39(1 row) 40 41